(eventually to be accompanied by a recording of her bad ukuleling)
Don't think you can make something with nothing on hand
Elements couldn't be elephants without energy inputted
You need heat- enthaply- to make nuclei bind
Wih enthalpy of formation, the elephant's fine
CHORUS
& do you eat, eat energy? you're endothermic
do you release energy? you're exothermic
the number of steps from place to place
doesn't matter
just consider initial and final state
calculate delta H
There's energy in stability, if you recall
The heat held there is the enthaply of the bond
We're giving it potential since it's held in wait
We could catalyse a reaction, move energy place to place
CHORUS
so compare those enthalpies for each compound
did more energy go in or more energy come out?
subtract initial's formation from the final, what remains
might be positive or negative, but that's your enthalpy change!
CHORUS
So Hess's Law actually just says that the net heat change of a reaction is the sum of all sub-changes. This song is mostly about how you can calculate enthalpy change using the enthalpy of formation, which is sort of a special case? Or rather, an extension of Hess's law.
(eventually to be accompanied by a recording of her bad ukuleling)
Don't think you can make something with nothing on hand
Elements couldn't be elephants without energy inputted
You need heat- enthaply- to make nuclei bind
Wih enthalpy of formation, the elephant's fine
CHORUS
& do you eat, eat energy? you're endothermic
do you release energy? you're exothermic
the number of steps from place to place
doesn't matter
just consider initial and final state
calculate delta H
There's energy in stability, if you recall
The heat held there is the enthaply of the bond
We're giving it potential since it's held in wait
We could catalyse a reaction, move energy place to place
CHORUS
so compare those enthalpies for each compound
did more energy go in or more energy come out?
subtract initial's formation from the final, what remains
might be positive or negative, but that's your enthalpy change!
CHORUS
So Hess's Law actually just says that the net heat change of a reaction is the sum of all sub-changes. This song is mostly about how you can calculate enthalpy change using the enthalpy of formation, which is sort of a special case? Or rather, an extension of Hess's law.